CA1205946A - Direct conversion of a polymerization reaction catalyzed by a ziegler-type catalyst into one catalyzed by a chromium-based catalyst - Google Patents
Direct conversion of a polymerization reaction catalyzed by a ziegler-type catalyst into one catalyzed by a chromium-based catalystInfo
- Publication number
- CA1205946A CA1205946A CA000436441A CA436441A CA1205946A CA 1205946 A CA1205946 A CA 1205946A CA 000436441 A CA000436441 A CA 000436441A CA 436441 A CA436441 A CA 436441A CA 1205946 A CA1205946 A CA 1205946A
- Authority
- CA
- Canada
- Prior art keywords
- reactor
- hydroxyl
- containing compound
- aliphatic
- polymerization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F295/00—Macromolecular compounds obtained by polymerisation using successively different catalyst types without deactivating the intermediate polymer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42908982A | 1982-09-30 | 1982-09-30 | |
US429,089 | 1982-09-30 | ||
US437,365 | 1982-10-28 | ||
US06/437,365 US4460755A (en) | 1982-09-30 | 1982-10-28 | Direct conversion of a polymerization reaction catalyzed by a Ziegler-type catalyst into one catalyzed by a chromium-based catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1205946A true CA1205946A (en) | 1986-06-10 |
Family
ID=27028030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000436441A Expired CA1205946A (en) | 1982-09-30 | 1983-09-09 | Direct conversion of a polymerization reaction catalyzed by a ziegler-type catalyst into one catalyzed by a chromium-based catalyst |
Country Status (10)
Country | Link |
---|---|
US (1) | US4460755A (sv) |
EP (1) | EP0107105B1 (sv) |
AT (1) | ATE18237T1 (sv) |
AU (1) | AU559421B2 (sv) |
CA (1) | CA1205946A (sv) |
DE (1) | DE3362331D1 (sv) |
FI (1) | FI76816C (sv) |
GR (1) | GR79400B (sv) |
HU (1) | HU196438B (sv) |
PT (1) | PT77415B (sv) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030695A (en) * | 1983-06-15 | 1991-07-09 | Exxon Research & Engineering Company | End-capped polymer chains, star and graft copolymers, and process of making same |
US4564660A (en) * | 1983-06-30 | 1986-01-14 | Union Carbide Corporation | Use of alkylaluminum compounds and hydroxyl-containing compounds to initiate polymerization of ethylene with chromium oxide catalysts |
WO1987003603A1 (en) * | 1985-12-16 | 1987-06-18 | Exxon Research And Engineering Company | End-capped polymer chains, graft and star copolymers, and process of making same |
US5391657A (en) * | 1993-09-27 | 1995-02-21 | Union Carbide Chemicals & Plastics Technology Corporaton | Method for reducing sheeting and static charges during polymerization of ethylene polymers |
US5442019A (en) * | 1994-03-25 | 1995-08-15 | Exxon Chemical Company | Process for transitioning between incompatible polymerization catalysts |
US5672666A (en) * | 1995-06-05 | 1997-09-30 | Exxon Chemical Patents Inc. | Process for transitioning between incompatible polymerization catalysts |
NO301331B1 (no) | 1996-03-05 | 1997-10-13 | Borealis As | Fremgangsmåte for skifting av katalysator ved suspensjonspolymerisasjon av olefiner |
US6388027B1 (en) | 2000-10-24 | 2002-05-14 | Union Carbide Chemicals & Plastics Technology Corporation | Transition strategy for the production of sticky polymers |
US7220801B2 (en) * | 2001-06-22 | 2007-05-22 | Exxonmobil Chemical Patents Inc. | Metallocene-produced very low density polyethylenes or linear low density polyethylenes as impact modifiers |
JP2006512446A (ja) * | 2002-12-27 | 2006-04-13 | ユニベーション・テクノロジーズ・エルエルシー | チーグラー・ナッタ重合触媒とアルモキサンベースのシングルサイト重合触媒との間の移行方法 |
US6897269B2 (en) * | 2002-12-27 | 2005-05-24 | Univation Technologies, Llc | Processes for transitioning between Ziegler-Natta and alumoxane-based single-site polymerization catalysts |
US6858684B2 (en) * | 2002-12-30 | 2005-02-22 | Univation Technologies, Llc | Processes for transitioning between various polymerization catalysts |
US6841630B2 (en) * | 2002-12-31 | 2005-01-11 | Univation Technologies, Llc | Processes for transitioning between chrome-based and mixed polymerization catalysts |
US6833417B2 (en) * | 2002-12-31 | 2004-12-21 | Univation Technologies, Llc | Processes for transitioning between chrome-based and mixed polymerization catalysts |
US6949612B2 (en) * | 2002-12-31 | 2005-09-27 | Univation Technologies, Llc | Processes for transitioning between metallocene and Ziegler-Natta polymerization catalysts |
US6833416B2 (en) * | 2003-03-21 | 2004-12-21 | Univation Technologies, Llc | Methods of polymerizing olefin monomers with mixed catalyst systems |
US7629422B2 (en) * | 2004-12-21 | 2009-12-08 | Univation Technologies, Llc | Process for transitioning between Ziegler-Natta-based and chromium-based catalysts |
WO2006130310A1 (en) * | 2005-05-27 | 2006-12-07 | Union Carbide Chemicals & Plastics Technology Corporation | Process for transitioning a reactor from a ziegler-natta catalyzed polymerization to a polymerization catalyzed by another type of catalyst system |
CA2529920C (en) * | 2005-12-13 | 2013-08-20 | Nova Chemicals Corporation | On the fly catalyst transitions |
EP2216347A1 (en) | 2009-01-30 | 2010-08-11 | Borealis AG | A method of catalyst transitions in olefin polymerizations |
EP3149061B1 (en) | 2014-05-27 | 2019-03-13 | SABIC Global Technologies B.V. | Process for transitioning between incompatible catalysts |
EA034766B1 (ru) | 2014-12-22 | 2020-03-18 | Сабик Глоубл Текнолоджиз Б.В. | Способ перехода между несовместимыми катализаторами |
KR102554874B1 (ko) | 2014-12-22 | 2023-07-12 | 사빅 글로벌 테크놀러지스 비.브이. | 비융화성 촉매 간의 전환 방법 |
WO2016151098A1 (en) | 2015-03-24 | 2016-09-29 | Sabic Global Technologies B.V. | Process for transitioning between incompatible catalysts |
SG11201907244SA (en) | 2017-02-07 | 2019-09-27 | Exxonmobil Chemical Patents Inc | Processes for reducing the loss of catalyst activity of a ziegler-natta catalyst |
EP4389776A1 (en) | 2022-12-20 | 2024-06-26 | Borealis AG | Process |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU34020A1 (sv) * | 1953-01-27 | 1956-02-06 | ||
US3023203A (en) * | 1957-08-16 | 1962-02-27 | Phillips Petroleum Co | Polymerization process |
NL137126C (sv) * | 1961-09-28 | |||
NL135065C (sv) * | 1965-05-14 | |||
GB1205635A (en) * | 1967-05-12 | 1970-09-16 | Ici Ltd | Polymerisation of ethylene |
US3622521A (en) * | 1967-08-21 | 1971-11-23 | Phillips Petroleum Co | Olefin polymerization with chromium and titanium-containing compounds |
US3709853A (en) * | 1971-04-29 | 1973-01-09 | Union Carbide Corp | Polymerization of ethylene using supported bis-(cyclopentadienyl)chromium(ii)catalysts |
US4011382A (en) * | 1975-03-10 | 1977-03-08 | Union Carbide Corporation | Preparation of low and medium density ethylene polymer in fluid bed reactor |
-
1982
- 1982-10-28 US US06/437,365 patent/US4460755A/en not_active Expired - Lifetime
-
1983
- 1983-09-09 CA CA000436441A patent/CA1205946A/en not_active Expired
- 1983-09-28 GR GR72562A patent/GR79400B/el unknown
- 1983-09-29 DE DE8383109784T patent/DE3362331D1/de not_active Expired
- 1983-09-29 FI FI833530A patent/FI76816C/sv not_active IP Right Cessation
- 1983-09-29 EP EP83109784A patent/EP0107105B1/en not_active Expired
- 1983-09-29 AT AT83109784T patent/ATE18237T1/de not_active IP Right Cessation
- 1983-09-29 AU AU19745/83A patent/AU559421B2/en not_active Ceased
- 1983-09-29 PT PT77415A patent/PT77415B/pt not_active IP Right Cessation
- 1983-09-29 HU HU833390A patent/HU196438B/hu not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU559421B2 (en) | 1987-03-12 |
FI833530A (fi) | 1984-03-31 |
GR79400B (sv) | 1984-10-22 |
HU196438B (en) | 1988-11-28 |
PT77415A (en) | 1983-10-01 |
EP0107105A1 (en) | 1984-05-02 |
PT77415B (en) | 1986-02-27 |
FI76816B (fi) | 1988-08-31 |
US4460755A (en) | 1984-07-17 |
DE3362331D1 (en) | 1986-04-03 |
ATE18237T1 (de) | 1986-03-15 |
AU1974583A (en) | 1984-04-05 |
EP0107105B1 (en) | 1986-02-26 |
FI833530A0 (fi) | 1983-09-29 |
FI76816C (sv) | 1988-12-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1205946A (en) | Direct conversion of a polymerization reaction catalyzed by a ziegler-type catalyst into one catalyzed by a chromium-based catalyst | |
EP0043220B1 (en) | Catalyst impregnated on fine silica, process for preparing, and use for ethylene polymerization | |
US4376191A (en) | Use of dialkylzinc compounds to initiate polymerization of ethylene with chromium oxide catalysts | |
US4011382A (en) | Preparation of low and medium density ethylene polymer in fluid bed reactor | |
RU2097388C1 (ru) | Способ получения полимера или сополимера этилена | |
US4354009A (en) | Catalyst composition for copolymerizing ethylene | |
CA1177050A (en) | Polymerization catalyst and method | |
EP0130607B1 (en) | Use of alkylaluminum compounds and hydroxyl-containing compounds to initiate polymerization of ethylene with chromium oxide catalysts | |
EP0055605A2 (en) | Improved catalyst composition for polymerizing ethylene, preparative method and polymerization process | |
EP0501491B1 (en) | Process for the preparation of a solid component of a catalyst for the (co)polymerization of ethylene | |
CA1069648A (en) | Preparation of low and medium density ethylene polymer in fluid bed reactor | |
US5006506A (en) | Modified chromium-containing catalyst composition for polymerizing olefins and method of preparing the catalyst composition | |
CA1146697A (en) | Olefin polymerization in a vertical fluid bed reactor system containing an internal cooler and apparatus therefore | |
US5994256A (en) | Process for forming a catalyst precursor for copolymerizing ethylene and an alpha-olefin of 3 to 10 carbon atoms | |
AU584693B2 (en) | Process for simultaneously dimerizing ethylene and copolymerizing ethylene with the dimerized product | |
KR940000790B1 (ko) | 에틸렌 중합체의 분자량 분포 조절용 촉매 | |
EP0081940A1 (en) | Preparation of a catalyst for and a method of producing linear low density polyethylene | |
US4210736A (en) | Particles of titanium trichlorides which can be used for the stereospecific polymerization of alpha-olefines | |
JPH0380164B2 (sv) | ||
WO2001044320A1 (en) | High activity polyethylene catalysts prepared with alkoxycarbon reagents | |
EP1229055A1 (en) | Process for the gas-phase (co)-polymerisation of olefins in a fluidised bed reactor | |
JP4108477B2 (ja) | ボレート試薬で作成される高活性ポリエチレン触媒 | |
EP0865316A4 (en) | CATALYST FOR THE MANUFACTURE OF POLYETHYLENE HAVING A TIGHT MOLECULAR WEIGHT DISTRIBUTION | |
JPH02135202A (ja) | アルファ−オレフィン重合用改質触媒組成物 | |
WO2005014670A2 (en) | Method for preparing catalyst precursor containing phosphates/phosphites reagents |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |